Home / 689,329.30-1,031,661.15-689,329.30

Finding the Fourth Proportional to 689,329.30, 1,031,661.15 and 689,329.30

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Solution

The fourth proportional to 689,329.30, 1,031,661.15 and 689,329.30 is: 1,031,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,329.30 : 1,031,661.15 = 689,329.30 : x
  2. Step 2: Convert to fraction form
    689,329.30/1,031,661.15 = 689,329.30/x
  3. Step 3: Cross multiply
    689,329.30x = 1,031,661.15 × 689,329.30
  4. Step 4: Simplify right side
    689,329.30x = 711,154,258,366.70
  5. Step 5: Solve for x
    x = 711,154,258,366.70/689,329.30
  6. Step 6: Final answer
    x = 1,031,661.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.